$resource = Mage::getResourceModel('catalog/product');
$resource = Mage::getResourceModel('sales/order_collection');
$resource = Mage::getResourceModel('cms/block');This code retrieves the resource model for the CMS block, which is used to access blocks of content from the Magento database. In each of these examples, Mage getResourceModel() is used to retrieve a specific resource model based on the input parameter. These models can then be used to retrieve and manipulate data from the Magento database.